Wiper substrate



FIG. 1 is a front plan view of a wiper substrate; the rear view being a mirror image thereof;

FIG. 2 is a right side view thereof; the left side view being a mirror image thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a cross section taken along line 4-4 of FIG. 1;

FIG. 5 is an enlarged view of a portion thereof; and,

FIG. 6 is a perspective view thereof.

The rear view thereof is a mirror image of FIG. 1; and

The left side view thereof is identical to FIG. 2. 

CLAIM I claim the ornamental design for wiper substrate, as shown and described. 